Rough endoplasmic reticulum looks rough under a microscope because it is covered by little ribosomes, that help with protein synthesis. The reason smooth endoplasmic reticulum does not apear rough is because it's synthesis is of lipids and steroids and it therefore does not need these ribosomes.
The evolution of giraffe.
The giraffe is a long necked animal that is found in most parts of the countries nd is herbivorous animal. It has a neck that is evolved to reach the tallest parts of the trees. The millions of years ago the ancestors of the giraffe family sed to at the grass leaves on the ground.
Thus the answer is adaptation and changing preferences.
- The long neck of the giraffe is a sign of the genetic evolution and a sign of adaptation of the spices towards the changing environment.
- The long neck of the giraffes is due to their adaptation. Over the millions of years the environmental factors as search for food, survival and changes in body size.
- Thus the giraffes changed due to the survival of the fittest.
Learn more about the ancestors of giraffes had short necks.
brainly.com/question/15216918.
Answer:
cytoplasmic, transmembrane
Explanation:
Pulse chase experiment is an important technique used to analyze the cellular process by labeling the cells with radioactive compound.
The radioactive amino acids is injected into the rabbit's retina. Two different moving peaks are observed during the experiment. The first peak moved at 0.5-2 mm/day and second peak at 200-400 mm/day. These peaks are observed due to difference in the synthesis and transport rate of the protein. Cytoplasmic protein has slow transport and sorting rate, indicates the first peak. The second peak corresponds to transmembrane protein.
Thus, the correct answer is option (a).
<h2> The average height of people in different nations has has increased approximately by 10 centimeters.</h2><h3>It mostly comes down to nutrition and child-rearing styles. </h3><h3>Some scientists believe that the increase in teenage and out-of-wedlock pregnancies in the developed world may be an unanticipated consequence of improved nutrition.</h3>
Tobacco smoking greatly increased over the last hundred or so years, but the old wives' dictum was always that "Smoking will stunt your growth!"
Hope this helped have a good day = ) .
The answer would be 0.26 centimeters.
